seasonal (Periodic)
Seasonal, or periodic, refers to events or changes that occur at specific times of the year. These changes can be influenced by factors such as weather, climate, and daylight hours. For example, the changing of the seasons—spring, summer, fall, and winter—brings different temperatures, precipitation patterns, and daylight lengths.
In nature, many organisms exhibit seasonal behaviors. Animals like bears hibernate during the cold months, while birds migrate to warmer regions. Plants also respond to seasonal changes, with many flowering in the spring and going dormant in the winter. These adaptations help ensure survival and reproduction in varying environmental conditions.